<audio autoplay="true" loop="true" id="bgsound">
			 <source src="alarm.mp3" type="audio/mp3">
			 <p>Your user agent does not support the HTML5 Audio element.</p>
			</audio>
			<button type="button"
			        onclick="document.getElementById('bgsound').pause();">
			  Stop background sound
			</button>
			
			<p>
			You'll probably annoy your readers if you use background sounds in documents.
			</p> 